Ore-cooler.



F. D. BAKER.

ORE COOLER.

APPLIGATION FILED Nov. '1, 190s.

Patented Dec. 14, 1909.

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@Hoz/mm3 Patented Dec. 14, 1909 3 SHEETS-SHEET a F. D. BAKER.

ORE COOLER.

APPLICATION FILED Nov. 7, 190s.

HHIII llllill P. D. BAKER.

ORB COOLER. APPLICATION FILED NOV. 7, 1908.

Patented Deo. 14, 1909 3 SHEETS-SHEET 3.

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DENVER., COLORADO.

ORE-COOLER.

Application filed November Y, 1h98. Serial No. 461,481.

, To all whom it 'may concern:

lle it known that. l, citizen ot the United States, residing at the city and county ot' Denver and State of Colorado, have invented certain new and useful improvements in Ore-Coolers; and l do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled' in the art to which it apperhiins to make and use the same, reference being had to the accompanying drawings, and to the rlgures or" reference marked thereon, which torni "a part ot this specification.

My invention relates to improvements in ore coolers, more especiallv adapted for use in cooling the ore after iv has been roasted, and prior to its treatment t'or the purpose of .siaviinev its metallic values.

rThe object of my present invention is to provide means of simple and economical construction which shall elifectually and quicldy perform the ore-cooling function., and to this end l provide a rotary cooler having cone-shaped extremities, and a cylindrical .body portion. lts axis occupiesI a horizontal gositiou. This cooler is mounted to rotate in water which is contained in a suitable receptacle. which water is continually changing, due. to a constant supply `from a suitable source, thus keepingits temperature. at a reasonably low point at all times. The depth of the water in which the cooler rotates is as great as practicable. The water by virtue of its buoyancy forms a supportor the cooler and makes it practicable to use a longer cooling' apparatus than would be otherwise possible. Inl order to properly cool the ore, an apparatus of con` siderable length is required and it is important that bearings intermediate the extremities of the rotary cooler be dispensed with. Hence, the water not only-serves to pci-torni oreecooliun function, but it also forms necessary and the most desirable support or the cooler intermediate the extremities I latter.

cono-shaped extremities of the cooler ovided with cylindrical extensions hollow trunnions which engagesuitablc bearings. Arlhe cooler is equipped with an operating igear which may be connected with any suitable power for purpose,` of rotation. The cylindrical body portion off "he cooler is equipped with flights which simultaneously ir and advance the ore toitinerari l). BAKER, a.

ward the discharge extremity of the apperatus. lhe cone-shaped discharge end of the cooler is equipped with a spirally arranged blade which advances the' ore toward the open extremity of the cooler where it is finally discharged in a properly cooled condition. llVater is lalso delivered to the top ot the cooler by a pipe mounted above the same and continually discharging water thereon. This water runs down over the cooler and iningles with the water below,

'which is continually over-Howing at one end receptacle for the cooling water being partly broken a ray. Fig. il is a top plan view of the same. Fig'. is a vertical longitudinal section taken through the cooler on the line 3--3 Fig. i. ln this view the cylindrical portion ot the cooler is shown broken to indicate that its length. should be very much greater than shown in the drawing, in order to harmonize with its diameter as there in dicated. Fin'. si is a cross section of the cooler taken on the line 4 4 Fig. 3. Fig. 5 is a ltragnuntary sectional view of one eX- tremity of the cooler. Figs. 3, 4f and 5 are shown on a larger scale than in the other views.

The. same reference characters indicate the same parts in all the. views.

Let. the numeral 5 designate'a tank containing vater (i, in which the. ore cooler 7 is mounted to rotate on a horizontal axis. This cooler is composed of a cylindrical body part S Vand cone-shaped extremities 9 and 10, These extremities are trusto-conical their smaller ends being equipped with hollow truunions lZ and 18 mounted in bearings 14 and l5 provided with anti-frictional rollers lll. The ore to be cooled is discharged into the conc-shaped extremity 9 by a conduit 17 1 and passes downwardly/I to the cylindrical `bodv 8 ot" the cone which is equipped with tiglits i8 suitably arranged to advance the orc to 'ard the discharge extremity and simultaneously stir the same to 'facilitate the cooling` operation. The` cone-shaped extremit l0 of the cooler is provided with aA Spirally arranged blade causingiheore to travel lltv to the cooler by any suitable power. As

shown in the drawing, the frame-work 20 at the discharge extremity oit' the cooler, is equipped with a shaft' 2l upon which are mounted fast and loose pulleys 22 which. may be connected with a rotating shait or any suitable motor. lt is evident that the .shaft 2l may be located at any suitable point.

Mounted upon the pulley shaft Qt is a pinion Q3 meshing with a relatively large gear 24 fast upon a shaft 25, which is also Vequipped with a smaller gear 26 meshing with a relatively large gear 27, which as shown in the drawing is tast upon the discharge extremity of the cooler. This gear may be applied to any other suitable part of the cooler. By virtue ot this construction,

a relatively slow rotary movement is imparted to the cooler, since the relative size otl the denominated gears has a speed reducing eect.

rlhe tank is continually supplied with l cooling water from a pipe 35 having a controlling valve 3G. The water overllows Jfrom one end of the tank through an opening 30,

passing first into a chamber 31 termed in the wall of the tank, and escaping therefrom through an opening The end of the tank opposite the inlet pipe 35 is provided with a drain pipe Q8 having a valve 29.

'llo facilitate the cooling ot' the ore, a pipe 33 is mounted above the cooler and perforated to discharge jets or sprays 34 of water upon the top thereof. This water Hows down upon the opposite sides of the cooler and serves to lower the temperature of the latter, thus facilitating the cooling of the ore traveling through the apparatus.

From the foregoing description the use and operation of my .improved ore ,sealer will be readily understood. Assuming that the tank 5 is filled with cooling water, the cooler is set in motion, its speed being` coniparatively slow as indicated b the train ot sliced-reducing gears connecte with the discharge extremity thereof, and heretofore described. l

rl"he cooling water is continually changing within the tank 5 virtue of the supply provided by the pipe 35 at one extremity, and the over-llow ot the cooling water at the other extremity ot the tank. 'l`hfc ore is ted n l. into the cone-shapecl end 9 ot the cooler and' passes downwardly to the cyli idi'iral body noi-tion thereof?, which, by/I flights, is continually raising the ore as the cooler rotates, and dropping it, 'thus simultaneously stirring and advancing the ore. In this manner it is gradually advanced from the truste-conical inlet to the correspondingly shaped outlet end of the cooler. As soon as it reaches the latter it is acted upon by the interiorly located spiral blade which gradually carries it to the discharge end of the cooler.

As heretofore stated, the buoyancy of the water has a tendency to tloat the cooler, and forms a support therefor, whose magnitude is equal to the weight of the body ot' liquid displaced. By virtue ozt' this liquid support iiii'criiiediate the end trunnions of the cooler, the latter may be given considerable length without danger of sagging or breaking. This is a very important feature in constructions ot this class. l also wish to emphasize the tact that my improved cooler is mounted to rotate on` a horizontal axis, as distinguished from coolers which occupy an inclined position. ln my cooler provision is made toi' advancing the ore from the inlet to the discharge e'.\treiiiity thereof, whereby there is no necessity tor mounting the cooler in an inclined position. l -t'urther wish to call attention t-o the tact that the tank 5 is supplied with water at the extremity remote i from the inlet extremity ot the cooler, whereby water is flowing through the cooling tank in a direction opposite the travel ot' the ore through the cooler, whereby l obtain a counter-stream advaiitiige.

llaviiig thiis described my invention, what l claim is:

l. ln ore cooling apparatus, the combination with a water containing receptacle, ot an ore cooler mounted to rotate iii said receptacle and having end supports only, theI coolei' being partly iiiimei'sed in the water nterii'iei'liate its extremitieses whereby the buoyancy oi the water serves :is a support.J means tor feeding the ore to the cooler, the latter being equipped with means toi' contiiiiially`advancing the ore i'rom the inlet to the outlet extreii'iity thereof, substantially as described.

2. ln ore cooling apparatus the combination with a water containing r`eceptacle, a cooler mounted to rotate iii said receptacle iii direct contact with the water iii which it is partly immersed, the cooler ha ving end supports only being opeii at its opposite extremities tor the reception and discharge of the ore, the cooler heilig equipped with means for siniulti'ineously stirring and advancing the ore during the cooling operation, substantially as described.

il. ln ore cooling apparatus the coinhiiiatioii with a water containingreceptacle, of a cooler n'ioiinted to rotate therein, and coiiiprisiiig a cylindrical body part, equipped virt/ie ot' its l with flights for stirring and advancing the ioo ore,the cooler having frusto-conical extremities for receiving and discharging the ore, the discharge extremity of the cooler having a spirally arranged blade for carrying the ore from the body of the cooler to the discharge end of the latter, substantially as described.

fl. In 'ore cooling apparatus, the combination of a receptacle for the cooling water, a cooler partly immersed in the water intermediate its extremities, having end supports only, the cooler being mounted to rotate in the receptacle and equipped with means for stirring and advancing the ore, provision being made forl continually supplying the receptacle with water, the said receptacle being constructed to permit the water to overflowtherefrom, substantially as described. 5; In apparatus of the class described, the combinatlon ot a water containing receptalrltnmeans for continually changing the editer in said receptacle, a cooler mounted to rottate'in the receptacle 1n direct contact with 'the water and having end bearings only, the

cooler being equipped with means for stirring and advancing the ore, during the cooling-operation, means for discharging Water upon .the top Aof the cooler, and means for imparting rotary movement to the latter, substantially as described.

(i. r[the cranbination with a water containing receptacle. means for continually changing the water in said receptacle, a cooler mounted in the receptacle and having a Cylindrical body portion and frusto-eomcal extremities, the said extremities having hollow' bearings through which the ore is itroduced and discharged, the body of the cooler being equipped with flights for stirring and advancing t ie ore the cooler being provided withbearings at its ends lonly, and means` connected with' the cooler iior imparting a relatively slow rot-ar movement thereto, substantially as descri ed.

7. ln apparatus of the class described, the combination of a water containing receptacle and an ore cooler mounted to rotate in said receptacle, and provided witlrend sup `ports, the water intermediate the extremities otE the cooler forming a support; for the lat-- ter, substantially as described.

8. ln apparatus of the class described, the combination of a water-containmg tank and an ore cooler mounted to rotate therein and ,having end bearings only, the buoyancy of -whereby the buoyancy of the latteriliasa tendency to float the cooler,.substantiallyl as described.

10. In apparatus of the class described, the combination of a water containing tank, an ore cooler mounted to rotate therein and having end bearings only, the cooler heilig parl tially submerged between its extremities, provision being mad-e to allow the Water t0 overflow at one end of the tank, and 'means for supplying the tank with water at the ex,- tremity of the latter opposite the over-flow end thereof, the lcooler being constructed to' cause the ore to travel therethrough, 0pposite the flow oi'the water in the tank, for the purpose' set forth. x

ln testimony whereof I affix my signature in presence of two witnesses.

. FRANK n. nanna.

lVitnesses z WVILL C, K Ennny, l-IERBER'1'-H. STEM. 

